Display device

Abstract

A display device includes a backlight module and a display module. The backlight module includes a plurality of light emitting units. The display module is disposed on the backlight module, wherein a spray angle of one of the light emitting units is greater than or equal to 135 degrees and less than 180 degrees.

What is claimed is: 
     
         1 . A display device, comprising:
 a backlight module comprising a plurality of light emitting units; and   a display module disposed on the backlight module;   wherein a spray angle of one of the light emitting units is greater than or equal to 135 degrees and less than 180 degrees.   
     
     
         2 . The display device of  claim 1 , wherein the backlight module further comprises an optical film disposed on the plurality of light emitting units, a distance between the optical film and one of the plurality of light emitting units is defined as a third distance, and a thickness of one of the plurality of light emitting units is defined as a first thickness, wherein a ratio of the third distance to the first thickness is ranged from 1.5 to 75. 
     
     
         3 . The display device of  claim 2 , wherein the backlight module further comprises a base plate and a supporting structure, the plurality of light emitting units are disposed on the base plate, the supporting structure is disposed between the base plate and the optical film, the supporting structure forms a plurality of cavities, and the plurality of light emitting units are disposed in the plurality of cavities correspondingly. 
     
     
         4 . The display device of  claim 1 , wherein the display module comprises a plurality of pixels, a distance between adjacent two of the plurality of light emitting units is defined as a first distance, and a distance between adjacent two of the plurality of pixels is defined as a second distance, wherein a ratio of the first distance to the second distance is ranged from 3 to 1000. 
     
     
         5 . The display device of  claim 4 , wherein the backlight module further comprises an optical film disposed on the plurality of light emitting units, a distance between the optical film and one of the plurality of light emitting units is defined as a third distance, and a thickness of one of the plurality of light emitting units is defined as a first thickness, wherein a ratio of the third distance to the first thickness is ranged from 1.5 to 75. 
     
     
         6 . The display device of  claim 1 , wherein the backlight module further comprises a protecting layer covering at least two of the plurality of light emitting units. 
     
     
         7 . The display device of  claim 6 , wherein the backlight module further comprises an optical film disposed on the plurality of light emitting units, a distance between the optical film and the protecting layer is defined as a fourth distance, and a thickness of one of the plurality of light emitting units is defined as a first thickness, wherein a ratio of the fourth distance to the first thickness is ranged from 1.5 to 75. 
     
     
         8 . The display device of  claim 6 , wherein the backlight module further comprises an optical film and a plurality of pins, the optical film is disposed on the plurality of light emitting units, and the plurality of pins are disposed between the protecting layer and the optical film. 
     
     
         9 . The display device of  claim 1 , wherein the backlight module further comprises a base plate and at least one controller, at least one of the plurality of light emitting units is electrically connected to the at least one controller, and the at least one controller and the plurality of light emitting units are disposed on a surface of the base plate. 
     
     
         10 . The display device of  claim 9 , wherein the backlight module further comprises a protecting layer covering at least two of the plurality of light emitting units and the at least one controller. 
     
     
         11 . The display device of  claim 1 , wherein the backlight module further comprises a base plate and at least one controller, the plurality of light emitting units are disposed on a first surface of the base plate, the at least one controller is disposed on a second surface of the base plate opposite to the first surface, and at least one of the plurality of light emitting units is electrically connected to the at least one controller. 
     
     
         12 . The display device of  claim 1 , wherein the backlight module further comprises a base plate and a plurality of thin film transistors, the plurality of thin film transistors are disposed between the plurality of light emitting units and the base plate, and at least one of the plurality of light emitting units is electrically connected to at least one of the plurality of thin film transistors. 
     
     
         13 . The display device of  claim 1 , wherein the display device comprises a first light converting layer disposed on the plurality of light emitting units, and the display module comprises:
 a first polarizer disposed on the backlight module;   a second polarizer disposed on the first polarizer; and   a liquid crystal layer disposed between the first polarizer and the second polarizer.   
     
     
         14 . The display device of  claim 13 , wherein one of the first polarizer and the second polarizer is disposed between the first light converting layer and the liquid crystal layer. 
     
     
         15 . The display device of  claim 14 , wherein the first light converting layer comprises a plurality of quantum dots. 
     
     
         16 . The display device of  claim 13 , wherein the first light converting layer is disposed between the liquid crystal layer and one of the first polarizer and the second polarizer. 
     
     
         17 . The display device of  claim 16 , wherein at least one of the plurality of light emitting units comprises a second light converting layer, and the second light converting layer comprises a plurality of quantum dots. 
     
     
         18 . The display device of  claim 13 , wherein the display device further comprises a transflective layer, wherein the first light converting layer is disposed between the transflective layer and the plurality of light emitting units.